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Tire monitor and method

a technology of pressure sensor and tire, applied in the direction of vehicle tyre testing, instruments, roads, etc., can solve the problems of inability to balance tires, unreliable use as a safety measure in automotive and aeronautical industry, and insufficient precision and accuracy of pressure sensor technology

Inactive Publication Date: 2006-11-23
OFLAZ OGUZHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current tire pressure sensor (TPS) technology is deficient in precision and accuracy, which makes them unreliable for use as a safety measure in automotive and aeronautical industry.
Currently commercially available devices for sensing tire pressure are large and may often even affect critical factors such as tire balance, making balancing of the tires virtually impossible.
Furthermore, such devices tend to become damaged during regular tire replacing, and are even prone to tampering, thereby necessitating the TPS to be replaced.
This and other factors make current TPS cost prohibitive and complicated for many end users.
A power source connected to a sensor, in addition to the large size of sensors that are currently commercially available, make the implementation of tire pressure sensors inefficient from a cost and practicality of use standpoint.
Furthermore, current TPS may be prone to vibration, temperature, and humidity, and typically provide low measurement precision and accuracy.
Also, battery replacement for the sensors may not be feasible at all times during operation.

Method used

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  • Tire monitor and method

Examples

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Embodiment Construction

[0022] The following describes an apparatus for and method of sensing air pressure of a tire attached to a vehicle during operation. One embodiment may advantageously be arranged to measure a pressure in a tire of many types of vehicles, including but not limited to passenger automobiles, buses, trailers, and commercial trucks of any size or weight classification, and so forth, and may even be implemented on tires used on other applications, for example, tires used on landing gear of aircraft, tires attached to cranes, trailers, or other machines. In a method of sensing pressure in a tire of a vehicle, an error discrimination method may be used to improve pressure information acquired from a single sensor or a plurality of tire pressure sensors. Moreover, in another method for sensing pressure in a tire of a vehicle, a weight of the vehicle may be determined for loading or highway commercial traffic weight regulation purposes. Such multi-functionality may be used to eliminate the ne...

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PUM

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Abstract

A tire monitor includes a first device (300) having at least one piezoelectric matrix element (404), and a first sensing layer (410) that includes at least one rectifier (106) and a processor element (110). The first device (300) is capable of sensing a deflection (u) in a layer of material, and is capable of processing the sensed deflection. The first device (300) is capable of wirelessly transmitting an indication (116) on a condition of the material.

Description

CLAIM OF PRIORITY [0001] This application claims the benefit of the filing date of U.S. Provisional Application Ser. No. 60 / 682,657, filed May 19, 2005 on behalf of the same inventor as the present application.FIELD OF THE INVENTION [0002] This invention relates to pressure sensors, including but not limited to pressure sensors used for sensing tire pressure for vehicles. BACKGROUND OF THE INVENTION [0003] Pressure sensors that sense air pressure internal to a tire of a vehicle during operation are known. Current tire pressure sensor (TPS) technology is deficient in precision and accuracy, which makes them unreliable for use as a safety measure in automotive and aeronautical industry. Current TPS technology is heavily based on semiconductor devices such as surface acoustic wave devices (SAW), and the devices developed thereof are primarily mounted on the valve stem of a tire or on the rim of the wheel. Currently commercially available devices for sensing tire pressure are large and ...

Claims

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Application Information

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IPC IPC(8): G01M17/02
CPCB60C23/0411G01M17/02B60C23/20B60C23/064
Inventor OFLAZ, OGUZHAN
Owner OFLAZ OGUZHAN